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A finite element-based cohesive zone model was developed using bilinear softening to predict the monotonic load versus crack mouth opening displacement curve of geometrically similar notched concrete specimens. The softening parameters for concrete material are based on concrete fracture tests, total fracture energy (G_F), initial fracture energy (G_f), and tensile strength (f_t^′), which are obtained from a three-point bending configuration. The features of the finite element model are that bulk material elements are used for the uncracked regions of the concrete, and an intrinsic-based traction-opening constitutive relationship for the cracked region. Size effect estimations were made based on the material dependent properties (G_f and f_t^′) and the size dependent property (G_F). Experiments using the three-point bending configuration were completed to verify that the model predicts the peak load and softening …